干旱区生态环境知识资源中心(Arid): Tree-Ring δ13C and Intrinsic Water-Use Efficiency Reveal Physiological Responses to Climate Change in Semi-Arid Areas of North China

Arid

DOI	10.3390/f15071272
	Tree-Ring δ13C and Intrinsic Water-Use Efficiency Reveal Physiological Responses to Climate Change in Semi-Arid Areas of North China
	Lu, Weiwei; Wu, Bo; Yu, Xinxiao; Jia, Guodong; Gao, Ying; Wang, Lili; Lu, Anran
通讯作者	Wu, B
来源期刊	FORESTS
EISSN	1999-4907
出版年	2024
卷号	15 期号:7
英文摘要	Climate change has had a widespread and profound impact on global temperature and precipitation patterns, especially in semi-arid areas. Plant delta C-13 and iWUE indicate the trade-off between carbon uptake and water loss, which is pivotal for understanding plant responses to climate change. Information about the long-term responses of the physiological and ecological processes of different tree species to climate change is also required. To investigate the impact of different forest stand structures and site conditions on long-term growth and physiological processes of coniferous and broad-leaved trees in the mountainous area of Beijing, we analyzed the tree-ring delta C-13 variation of four tree species (Platycladus orientalis, Pinus tabuliformis, Quercus variabilis, Robinia pseudoacacia) sampled from 64 plots with varying site and stand conditions. We found that the tree-ring delta C-13 of the four tree species varied from each other and was mainly affected by density and slope aspect, followed by slope and age. Both tree-ring delta C-13 and iWUE of the four tree species showed increasing trends over time, mechanistically linked to long-term changes in global CO2 concentration. This indicates the four native tree species have adapted well to climate change, and the risk of decline is relatively low. The increased iWUE translated into different growth patterns which varied with tree species, site, and stand condition. Different tree species have varying sensitivities to environmental factors. The iWUE of coniferous tree species is more sensitive to climate change than that of broad-leaved tree species, especially to temperature (T), the Standardized Precipitation Evapotranspiration Index (SPEI), and vapor pressure deficit (VPD).
英文关键词	tree-rings climate change carbon isotope discrimination iWUE tree decline
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001278863800001
WOS关键词	CARBON-ISOTOPE DISCRIMINATION ; STABLE-ISOTOPES ; DROUGHT STRESS ; SCOTS PINE ; GROWTH ; MORTALITY ; COMPETITION ; FOREST ; SITE ; OAK
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403804
推荐引用方式 GB/T 7714	Lu, Weiwei,Wu, Bo,Yu, Xinxiao,et al. Tree-Ring δ13C and Intrinsic Water-Use Efficiency Reveal Physiological Responses to Climate Change in Semi-Arid Areas of North China[J],2024,15(7).
APA	Lu, Weiwei.,Wu, Bo.,Yu, Xinxiao.,Jia, Guodong.,Gao, Ying.,...&Lu, Anran.(2024).Tree-Ring δ13C and Intrinsic Water-Use Efficiency Reveal Physiological Responses to Climate Change in Semi-Arid Areas of North China.FORESTS,15(7).
MLA	Lu, Weiwei,et al."Tree-Ring δ13C and Intrinsic Water-Use Efficiency Reveal Physiological Responses to Climate Change in Semi-Arid Areas of North China".FORESTS 15.7(2024).